Sentence variety in your writing means that you write about different topics in each
sentence.

in paragraph 6 of "sinners in the hands of an angry god" by jonathan edwards, he talks about how doing good things alone will not save men from going to hell because they're at the mercy of the will of god. "spiritual reform" provides men with a false sense of safety.

the god   the goddess of salt water, of fresh water   yet more powerful and perfect.

where is the writing? (so i can answer)

1 - a

2 - a

3 - c

4 - b

5 - d